#pragma once

#include<iostream>
#include<string>
#include<unistd.h>
#include<cstring>
#include<sys/types.h>
#include<sys/stat.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>
#include"Log.hpp"

extern Log lg;

enum{
    SocketErr = 2,
    BindErr,
    listenErr,
};

const int backlog = 10;

class Sock{
public:
    Sock(){
        
    }
    ~Sock(){

    }
public:
    void Socket(){
        sockfd_ = socket(AF_INET,SOCK_STREAM,0);
        if(sockfd_<0){
            lg(Fatal,"socker error, %s: %d",strerror(errno),errno);
            exit(SocketErr);
        }
    }

    void Bind(uint16_t port){ //绑定端口
        struct sockaddr_in local;
        memset(&local,0,sizeof(local));
        local.sin_family = AF_INET;
        local.sin_port = htons(port);
        local.sin_addr.s_addr =INADDR_ANY;//地址”0.0.0.0“
        // std::cout<<"port:"<<port<<std::endl;
        if(bind(sockfd_,(struct sockaddr *)&local,sizeof(local))<0){ //bind
            lg(Fatal,"bind error, %s: %d",strerror(errno),errno);
            exit(BindErr);
        }
    }
    
    void Listen(){ // 监听
        if(listen(sockfd_,backlog)<0){
            lg(Fatal,"listen error, %s, %d",strerror(errno), errno);
            exit(listenErr);
        }
    }

    int Accept(std::string *clientip, uint16_t *clientport){
        struct sockaddr_in peer;
        socklen_t len = sizeof(peer);
        int newfd = accept(sockfd_, (struct sockaddr*)&peer, &len); // 接受
        if(newfd<0){
            lg(Warning,"accept error, %s: %d",strerror(errno),errno);
            return -1;
        }
        char ipstr[64]; 
        inet_ntop(AF_INET,&peer.sin_addr,ipstr,sizeof(ipstr));// 网络存储转主机存储
        *clientip = ipstr;
        *clientport = ntohs(peer.sin_port);
        return newfd;
    }

    bool Connect(const std::string &ip, const uint16_t &port){
        struct sockaddr_in peer;
        memset(&peer, 0, sizeof(peer));
        peer.sin_family = AF_INET;
        peer.sin_port = htons(port);
        inet_pton(AF_INET,ip.c_str(),&(peer.sin_addr));
        int n = connect(sockfd_,(struct sockaddr*)&peer,sizeof(peer));
        if(n==-1){
            std::cerr<<"connect to "<<ip<<":"<<port<<" error"<<std::endl;
        }
        return true;
    }

    void Close(){
        close(sockfd_);//讲文件描述符关闭，server端也会关闭
    }
    
    int Fd(){
        return sockfd_;
    }

private:
    int sockfd_;
};